133223331220 has 48 divisors (see below), whose sum is σ = 324115964928. Its totient is φ = 45050860800.

The previous prime is 133223331193. The next prime is 133223331221. The reversal of 133223331220 is 22133322331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133223331221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6507556 + ... + 6527995.

It is an arithmetic number, because the mean of its divisors is an integer number (6752415936).

Almost surely, 2^133223331220 is an apocalyptic number.

133223331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133223331220 is an abundant number, since it is smaller than the sum of its proper divisors (190892633708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133223331220 is a wasteful number, since it uses less digits than its factorization.

133223331220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13035640 (or 13035638 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 133223331220 its reverse (22133322331), we get a palindrome (155356653551).

The spelling of 133223331220 in words is "one hundred thirty-three billion, two hundred twenty-three million, three hundred thirty-one thousand, two hundred twenty".